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Unique  among Vivaldi’s instrumental works is a quadro which has recently   been given the catalogue number RV 801.(1) This work, published here  for the first time in modern edition, is comparable in quality to  many of Vivaldi’s concerti a quattro. Scored for three solo  instruments and basso continuo, it contains a wealth of  concertante elements, bringing to mind the style of the Venetian  composer’s concertos. The work’s ingenuity of approach,  particularly the even distribution of melodic interest among the  three obbligato parts, belies the still commonly held view that  the composer’s writing was stereotyped, formulaic and lacking in  contrapuntal complexity.
 
 
The quartet-sonata was not widely cultivated by Baroque composers, but  Vivaldi’s RV 801 conforms closely to the model established by the  genre’s leading exponents—the Frenchmen Louis-Antoine Dornel  (1680–1756), Joseph Bodin de Boismortier (1689–1755) and Louis- Gabriel Guillemain (1705–70), and the Germans Johann Friedrich  Fasch (1688–1758), Johann David Heinichen (1683–1729), Jan Dismas  Zelenka (1679–1745) and Georg Philipp Telemann (1681–1767).(2) In  his 1752 treatise Versuch einer Anweisung die Flöte traversière zu  spielen, Johann Joachim Quantz wrote: 
 
 A quartet, or a sonata with three concertante instruments and a  bass, is the true touchstone of a genuine contrapuntist, and is  [also] often the downfall of those who are not solidly grounded in  their technique. Its vogue has never been great, hence its nature  may not be well known to many people. It is to be feared that  compositions of this kind will eventually become a lost art.(3)
 
 The genre indeed lasted barely more than fifty years, emerging  recognizably by 1706 (Dornel’s Op. 1 collection), reaching its  peak in the 1730s (Telemann’s Paris Quartets) and fading by the  1760s. Yet stylistically it is not without some interest, often  approaching a concerto for three or four solo instruments (cf.  Bach’s Brandenburg Concerto No. 2, whose slow movement without  orchestra imitates quadro texture); with its three parts of equal  rank above a continuo bass, this ‘sonata-concerto’ can also be  seen as a natural development of the trio 
 sonata. 
 
 Vivaldi’s single essay in the genre, though perhaps insignificant  compared with the output of other quadro composers, reveals the  Venetian’s quest for innovation, particularly his attraction to  ‘new’, less common genres, of which his Introduzioni are notable  examples in the sacred vocal realm.(4) Furthermore, the existence of  this particular quadro raises the possibility of a historical  connection—albeit oblique —with the string quartets of the  Classical period (a link that remains open to future 
 investigation).(5) On historical and stylistic grounds, RV 801 may  be dated approximately to the beginning of the third decade of the  eighteenth century, when some of the composer’s instrumental  chamber concertos, such as RV 91, 98 and 107, were beginning to  emerge.(6) Like many of these works, his quadro is more likely to  have been written for a private patron who had no orchestra at his  disposal than for a large institution such as the Ospedale della  Pietà.
 
 In the absence of an autograph source or a good primary copy, and  especially in view of the enigmatic inscription ‘Del Sign.re  Handel’ (or possibly ‘Haendel’) encountered at the end of the  continuo part, the element of doubt surrounding the authenticity of  RV 801 cannot be eliminated entirely. The work’s strongest claim  to authenticity lies in the music itself: numerous elements  conform to the familiar style of Vivaldi’s concertos—the four- movement, slow –fast–slow–fast da chiesa layout, the ritornello- form fast movements, the binary slow movements, the melodic  figurations in the opening two movements and the rhythmic devices  in the second Allegro are all orthodox Vivaldian gestures—and a  number of short passages are virtually identical with ones in the  authenticated works.(7) It is not wholly implausible that the  original score was headed ‘concerto’ but that the title was  subsequently altered in accordance with the German habit of  reserving the ‘grander’ generic label for works employing an  orchestra. 
 
 
The present edition has been prepared from the work’s sole surviving  source, a set of four parts preserved in the Fürstenberg  Collection (Fü 3640a) at Schloss Herdringen, Germany.(8) The non- autograph parts are in upright format, with the two treble parts  occupying a bifolio and the two lower ones a single folio. The  headings for the individual parts are:
 
 1 Flauto Traversie o Hautbois
 2 Violino Secondo ò / Hautbois
 3 Violoncello ò / Basson Concertino
 4 Cembalo
 
 Evidence suggests that part 1 was copied by a different hand from  that responsible for the other parts: its calligraphy is distinct,  and the paper on which it is written is larger. Moreover, part 1 is  not assigned (even as an alternative choice) to the violin,  although the ‘violino secondo’ designation for part 2 implies a  complementary ‘violino primo’. Part 1, therefore, most likely  belonged to a set of parts (Set A, the rest of which are missing)  copied either earlier or later than the existing parts 2–4 (Set B).  It is impossible to ascertain which set was prepared first, or  whether one was copied directly from the other. But each may well  have been based independently on a lost copy text,  probably—judging from the kinds of error that occur—a score.
 
 The attribution to Vivaldi appears in a contemporary inventory of  the music collection originally owned by Freiherr Hermann  Friedrich von Wittenhorst-Sonsfeld(t), a Dutch nobleman and naval  commander, before it passed to the Fürstenberg family when the  Freiherr’s line became extinct in 1738.(9) Item 14 in this  catalogue—the item with which the present edition is  concerned—reads: ‘sonata à 4. / 1. Hautbois 1. Travers / 2 Basson /  signr Vivaldi’ (with added annotation ‘adest’, i.e. present). It  is apparent from this entry that the instrumentation prescribed in  Set B, containing the extant parts 2–4, was not the same as that  of the set of parts consulted when the Sonsfeld catalogue was  prepared. Presumably, it was from Set A that the attribution to  Vivaldi was taken. Quite possibly, the manuscript part for  transverse flute / oboe (part 1), which itself gives no composer’s  name, is a relic of this missing set.
 
 
Rebecca Kan 
Liverpool, September 2001 
 
1  The new catalogue number supersedes the previous designation, RV Anh. 66, that first appeared in Peter Ryom, Verzeichnis der Werke Antonio Vivaldis (RV): Kleine Ausgabe (Leipzig: Deutscher Verlag für Musik, 1979), 159. This change was communicated by Ryom to Istituto Italiano Antonio Vivaldi in 2001. On this work, see Michael Talbot, ‘Vivaldi’s Quadro? The Case of RV Anh. 66 Reconsidered’, Analecta musicologica (forthcoming). I wish to thank Paul Everett and Michael Talbot for their help and advice in the preparation of this edition. 
2  Victoria Halliwell, ‘The Quadro: The Emergence and Development of a Little-Known Genre’, M.Mus. diss. (University of Liverpool, 1998). 
3  Johann Joachim Quantz, On Playing the Flute, trans. Edward G. Reilly (London: Faber, 1966), 316-17.
4  Michael Talbot, The Sacred Vocal Music of Antonio Vivaldi (Florence: Olschki, 1995), 300.
5  For a discussion of the quadro genre, see Michael Talbot, The Finale in Western Instrumental Music 
(Oxford: Oxford University Press, 2001), 157.
6  Cesare Fertonani, La musica strumentale di Antonio Vivaldi (Florence: Olschki, 1998), 85.
7  Examples are given in Talbot, ‘Vivaldi’s Quadro?’.
8 We are grateful to Bibliotheca Fürstenbergiana for permission to use this source for the present edition.
9  A facsimile of the Sonsfeld catalogue is reproduced in Jürgen Kindermann (ed.), Deutsches Musikgeschichtliches Archiv Kassel. Katalog der Filmsammlung, iv (Kassel, [etc.]: Bärenreiter, 1992), 160–1, 176–8.
 
  
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